JPH0874881A - Clutch disc for friction clutch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a clutch disc inexpensively and functionally by engaging a hub disc with the outer outline of a hub torsionally-rigidly through an inner outline without play in a circumferential direction, and guiding either a lining carrier or a cover plate to the guide diameter of the hub through a friction or sliding pair. SOLUTION: This clutch disc 1 consists of a hub 3 disposed on a rotational axis 2 coaxially, and the hub 3 is provided with an inner spline 6 so as to torsionally-rigidly fit to the outer spline of a transmission input axis. The hub 3 has an outer spline 13 so as to engage with the inner spline 14 of a hub disc 7. A lining carrier 9 and a cover plate 10 are extended to both ends of the hub disc 7 and combined with each other torsionally rigidly, and the lining carrier 9 has a friction lining 11. The hub and hub disc are manufactured separately, and advantageous manufacturing methods for respective members can be selected, so that the respective members are disposed and guided strictly, thus it is possible to manufacture them inexpensively and functionally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clutch disc for a friction clutch. More specifically, a hub provided with an inner spline for fitting to a transmission input shaft that limits a rotation axis in a torsionally rigid manner, and a hub disk configured with the hub and the torsionally rigidly are mutually coupled in a torsionally rigid manner. Thin plate components arranged on both sides of the hub disc in the form of a lining carrier disc and a cover plate held apart, a friction lining arranged on the lining support radially outside, a friction lining when subjected to torque and a hub A clutch disc having a split hub disc of the type including a window provided on the one hand on the lining support and on the cover plate and on the other hand on the hub disc for receiving a spring allowing relative rotation between them. is there.

[0002]

Clutch discs of this kind are already known in various aspects. For example, according to German Patent Publication No. 14 25 185, in a clutch disc, a hub and a hub disc are manufactured on one member, a few hub discs, a lining support or a cover plate are arranged so that they are torsionally rigid with respect to each other. It is known to combine and hold apart. A friction device is provided in an area radially inward of the torsion bar. Furthermore, according to DE-A 28 14 240, the hub disc of the clutch disc is divided and implemented, and it has a spline with a clearance in the circumferential direction, and this clearance acts as an integral idling damper. It is known to establish a range. The lining support is in this case guided in the region of its inner diameter via an L-shaped bearing wheel to the hub. Furthermore, according to DE 34 42 705 A1, a clutch disc with an idling damper and a two-part hub has a spline and a circumferential play, and a cover plate is L-shaped relative to the hub.
It is known to be guided via shaped bearing wheels.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to produce a clutch disc for a friction clutch having a torsional vibration damper as cheaply and functionally as possible.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a clutch disk of the type described above, in which: a) the hub disk is torsionally rigid through the inner contour, particularly through the inner spline, and is circumferentially stiff. Meshes with the outer contour of the hub without play, in particular with the outer spline (13), and b) at least one part, namely the lining support or the cover plate, with respect to the guide diameter of the hub, for example plastic / It is solved by being guided through friction or sliding pairs of metal or the like.

At least one part of a split hub disk, which engages the outer spline of the hub torsionally rigidly in the circumferential direction without play through the inner spline, through a plastic / metal friction pair or a sliding pair at the guide diameter of the hub. , I.e. in combination with guiding the lining support or the cover plate, it is possible, on the one hand, to manufacture the hub and the hub disc separately and to choose a particularly advantageous manufacturing method for each member, On the other hand, the members, which are rotatable relative to one another, are arranged so as to be closely arranged relative to one another at least on one side of the hub. However, the lack of play in the spline means a tolerance situation in which both parts still have to be assembled slightly.

According to another characteristic of the invention, the splines are provided in a radial area between the radially inner areas of the hub disk and the spring window of the hub. In this way, most of the hub disk can be easily manufactured from the thin plate portion, and only the portion of the hub where the outer spline is provided projects radially outward, without causing major manufacturing problems during hub manufacturing.

Furthermore, a bearing wheel, preferably made of plastic, is fitted into the lining support and / or the cover plate, which bearing wheel is fitted into the guide diameter of the hub, preferably of metal. There is. The bearing wheel provides a substantially clearance-free arrangement of the hub and the lining support with the friction lining, which minimizes the negative effects of unbalance during operation. In addition, the bearing ring made of plastic, which is fitted into this location, provides a constant low friction at this location during relative rotation, which is also due to, for example, the deviation of the crankshaft rotation axis from the transmission input shaft rotation axis. This is also the case when subjected to radial loads. It should be pointed out here that this bearing wheel can, of course, also be arranged on the cover plate or even on the lining support and the cover plate. The last-mentioned embodiment is fairly rigid in view of possible axial offsets or constant oscillating movements of the transmission input shaft, in particular the shaft difference is reduced to a minimum by, for example, pilot bearings. Demonstrate its value in the place.

The bearing wheel has substantially a bearing body which is concentrically fitted in the hole of the lining support and / or the cover plate, and a flange which projects radially outwardly and abuts the inner surface of the lining support or the cover plate. Another advantage of the present invention can be seen in the L-shaped cross section. This embodiment of the bearing wheel results in a very simple pre-assembly of the lining support or cover plate,
This bearing wheel is supported by a relatively large annular surface of the hub or hub disc, in which case an advantageous long-term behavior can be expected, for example in consideration of friction.

The spline between the hub disc and the hub is arranged with respect to the bearing and its flange so that there is a spline between the inner and outer diameters of the bearing, including the flange. This ensures that, for example, when there is manufacturing inaccuracies in the spline, a continuous annular surface of the bearing wheel is still abutting in the circumferential direction both radially outside and radially inside the spline. .

It is further proposed that a friction device with an axially effective spring is arranged on the side of the spline opposite the bearing wheel--as long as the bearing wheel is provided on only one side. This friction device with an axially effective spring causes the bearing wheel to abut the hub or hub disc, thus providing friction on the side of the bearing wheel. The friction device also advantageously includes a friction wheel that radially covers the spline. In this case, it is possible without problems to provide a metal-to-metal friction device, but the variant using friction wheels of another material is also quite advantageous in practice.

Furthermore, the width or material thickness of the hub and the hub disk are adjusted relative to each other at least in the range of the splines,
Preferably the hub disc has a smaller width,
A play is provided in the axial direction between the bearing wheel and the friction device for the hub disc. This embodiment allows easy unification of the individual parts, taking into account the wide range of possible combinations. For example, when using standard hubs, a wide variety of hub disks of different widths can be used, each of which can be made thinner or thicker depending on the torque generated.

On the other hand, it may of course be advantageous to implement a hub disc with a width greater than the spline of the hub, in a clutch disc thus implemented-especially if the bearing wheels are arranged on one side. Greater swingability of the lining support or cover plate with respect to the hub can be achieved. This greater rockability can be advantageous, especially when the transmission shaft is not aligned with the crankshaft.

It may be advantageous within the meaning of the invention that the friction device is arranged to be effective radially outside the spline of the hub with respect to the hub disk. This configuration may be advantageous when the clutch discs undergo a constant oscillating movement due to non-aligned transmission shafts, and the proposed embodiment proposes that the friction device is able to accommodate displacement between the hub disc and the hub. Ensure that the frictional effect is maintained as it is without being affected.

The friction device comprises at least a friction wheel in contact with the hub disk and a spring between the friction wheel and the inner wall of the lining support or the cover plate. However, it is also possible without problems to provide a pressure wheel between the spring and the friction wheel, which pressure wheel, for example, is torsionally rigid, but axially displaceable in the cover plate or in the lining support. Has been done. This friction device ensures perfect functionality over the entire life of the device.

According to another characteristic of the invention, it is advantageous to arrange a further friction wheel between the outer spline and the spring of the friction device in the region of the outer spline of the hub. In this way, two friction wheels can be arranged one above the other in the radial direction in the range of the spline, and these friction wheels work independently of each other.
It can be biased by its own spring or by a common spring, which is supported on the one hand by a cover plate or a lining support and on the other hand has different spring tongues, Respectively act on the friction wheel.

It should be pointed out here that each friction device can also consist only of a bearing wheel and a spring provided on the opposite side, for example a wave spring. This arrangement is particularly inexpensive. Furthermore, the hub of the clutch disc is manufactured from plastic and the lining support and / or the cover plate are provided with substantially cylindrical extensions facing away from the splines, these extensions being provided with said guide diameter of the hub. It is suggested to fit in the section. In this configuration, the bearing wheel can be dispensed with altogether, since the plastic / metal friction pair is already provided by the material of the hub and the material of the lamellas produced from it. At the same time, the extension of the lining support and the cover plate fitted into the guide diameter of the hub and having a suitable axial length is
It is particularly advantageous as long as these extensions protect the hub made of plastic from being deformed radially outward by the torque transmitted to the inner spline.

The outer spline of the hub then extends over only part of its axial length, the remainder acting as an axial stop for the hub disc, and on the side opposite to the rest of the spline, an axially effective spring. It may be advantageous if a friction device with is arranged. This embodiment is particularly simple to manufacture and can be made up with a small number of individual parts. At the same time, the axial mobility of any hub discs present is limited by the rest of the hub.

Advantageously, the spring of the friction device, or the friction wheel arranged between the spring and the outer spline, is designed to project radially from the outer spline, where the axial fixing of the hub disc is established. Can be secured. The width of the hub disc is adjusted to the axial length of the outer spline of the hub so that the hub disc has an axial play. This gives the hub disc the possibility of adjusting itself in the region of its axial play. Furthermore, it is possible to use the same hub to construct different hub disks of different material thickness.

Furthermore, the outer spline of the hub extends only over a part of the axial length of the hub, the remaining part serves as an axial stop for the hub disc, and the friction device is arranged on the side opposite to the remaining part of the outer spline. Is suggested.
Thus, on the side of the bearing wheel, facing this bearing wheel, an uninterrupted, continuous bearing surface is provided, in which case frictional relative rotation can occur with very low wear. At that time, the hub disk can be made wider than the axial length of the outer spline of the hub. As a result, the hub disk is firmly fixed in the axial direction, and the hub disk cannot perform relative movement in the axial direction. This brings advantages in consideration of the fact that the unbalance during operation is particularly small.

In this case, the friction device comprises a pressure wheel, which is mounted on the friction wheel on the side of the friction wheel opposite to the hub disk, and the pressure wheel and the lining support or It may be advantageous if a spring is arranged between it and the cover plate. In this way it is ensured that the friction wheel is protected from one-sided loads, which can occur especially when using disc springs.

[0021]

EXAMPLES The present invention will be described in detail below based on several examples. FIG. 1 is a vertical sectional view of the upper half of the clutch disc 1. This clutch disc has a rotation axis 2
It comprises a hub 3 arranged coaxially with respect to. Hub 3
It has an inner spline 6 for torsionally rigidly fitting to an outer spline of a transmission input shaft (not shown). The hub 3 is provided with an outer spline 13 that projects in the radial direction in a substantially axial center range.
The inner spline 14 of the hub disk 7 meshes with the outer spline. Both splines are adjusted to one another in the circumferential direction so that they match as close as possible to each other with as little play as possible, but it would still have to be possible for simple assembly in continuous production. A lining support 9 and a cover plate 10 are extended on both sides of the hub disk 7, and they are torsionally rigidly coupled to each other and are held apart from each other. The lining support 9 is provided with a friction lining 11 in its radially outer region. A window for receiving the spring 12 is arranged on the peripheral surface of the window corresponding to the hub disk 7 and the lining support 9 or the cover plate 10. When the friction lining 11 is loaded with torque and this torque is transmitted to the transmission shaft via the hub 3, elastic relative rotation between the lining support 9 and the cover plate or the hub 3 for torsional damping takes place. be able to. The splines 13, 14 between the hub 3 and the hub disk 7 are housed in the radial space between the hub 3 and the spring 12. A friction device 19 for damping relative rotation is further provided in this range. The friction device 19 in this case comprises a friction wheel 26, a pressure wheel 27, which is associated with the splines 13, 14, and a spring 23, for example in the form of a disc spring, which is supported on one side by the inner wall of the cover plate 10, for example. And is supported by the pressure wheel 27 on the opposite side. The pressure wheel itself acts via the friction wheel 26 on the spline area of the hub or hub disc. On the side of the spline area opposite to the friction device 19, the lining support 9 is supported in its inner diameter range by means of a bearing wheel 16 whose inner diameter part is fitted on the guide diameter part 15 of the hub 3. There is. The bearing wheel 16 has in this case a bearing 18 and a flange 17 extending radially outward, which abuts the inner surface of the lining support 9. The spring 23 of the friction device 19 causes the lining support 9 to move through the bearing wheel 16 in the spline range.
Abutted on 13,14. In this case, the hub disk 7 has its inner spline 13 narrower than the hub 3. The guide diameter portion 15 and the flange 17 of the bearing wheel 16 are also friction wheels.
Also in 26, their outer diameters project from the spline areas 13 and 14. According to this embodiment, for example the standard hub 3
Can be combined with hub discs 7 implemented in various thicknesses to make a clutch disc series with relatively few individual parts. The frictional action of the friction device 19 and the bearing wheel 16 occurs only on the outer splines 13 of the hub 3. The bearing wheel 16 provides a perfect arrangement of the parts which are rotatable relative to one another and in particular a uniform friction effect on the guide diameter 15 of the hub 3. The bearing wheel 16 is, for example,
It is possible without any problems to arrange them on the side of, or to equip the lining support 9 and the cover plate 10 with separate bearing wheels.

FIG. 2 shows a part of the modification of FIG. As an essential difference between the two embodiments, in FIG. 2 the material thickness of the hub disk 8 is greater than the axial length of the hub 3 in the region of its outer spline 13. This allows the flange 17 of the bearing wheel 16 to
The friction wheel 26 is also laterally mounted on the hub disk 8, and a certain clearance is provided between them and the outer spline 13 of the hub 3. The bearing wheel is, for example, the lining support 9
Located on the side of, the clutch disc of this embodiment is capable of oscillating movement within a certain range. This rocking motion is due to the friction lining 11 and the lining support 9
While the cover plate 10 and the cover plate 10 are fixed in the clutch, the rotation axis 2 of the hub 3 swings because the transmission shafts are not aligned with respect to the crankshaft. If this load acts on the clutch disc from the outside, it is in any case advantageous to provide the bearing wheels only on the lining support or the cover plate. It should be noted that, if only one bearing wheel is used, this bearing wheel is positioned with respect to the friction device.

In the variant of FIG. 2 shown in FIG. 3, the hub 4 has another shape in the region of the outer spline 13. The outer spline is provided on the hub 4 only over the axial partial range of the spline range, and the remaining range is such that there is no spline on the side facing the bearing wheel 16, and this remaining range is the radius from the outer contour of the outer spline 13. Projecting in the direction of the bearing ring
It has approximately the same diameter as the 16 flanges 17. The hub disk 8 has an inner spline 14 meshing with an outer spline 13 of the hub 4. The hub disc 8 has an axially outer spline 13
It has a material thickness such that it projects towards the cover plate 10. With this configuration, the friction wheel 26 is placed on the inner spline 14 of the lining support 8 by the force of the spring 23, and the lining support is brought into contact with the enlarged diameter range of the hub 4 and fixedly held in the axial direction. The force path is—starting from the spring 23—the cover plate 10, the retaining means arranged between the cover plate 10 and the lining support 9, the lining support 9, the flange 17 of the bearing wheel 16, the hub 4, the hub. It is closed via a disc 8, a friction wheel 26 and a pressure wheel 27. The axial frictional locking of the hub disk 8 results in a clutch disk of its own which is not very prone to large imbalances during operation due to the relatively strong locking.

In another variant shown in FIG. 4, the hub disk 7 is implemented narrower than the area of the outer spline 13 of the hub 3. The lining support 9 has a bearing wheel 16 on its radially inner diameter, which bearing wheel 17 has a radially projecting flange 17, as is known. A friction ring 29 is arranged between the cover plate 10 and the outer spline 13 of the hub 3 on the opposite side, and a friction ring 28 is arranged facing the hub disk 7 on the outer side of the outer spline 13 in the radial direction. The friction wheel 29 directly contacts the hub 3, and the friction wheel 28
Directly contacts the hub disk 7. In this way, the friction device 21 and the friction device 20 are realized by overlapping with the spring 24 in the radial direction. The spring 24 can be a combination member having another spring tongue 30 acting on the friction ring 28 and another spring tongue 31 acting on the friction ring 29, as shown. However, it is also possible to provide a separate spring for each friction wheel 28, 29. By arranging two friction wheels 28, 29 that are radially superposed, the friction devices 20, 21 can each be independently adjusted according to the intended use of the clutch disc. Moreover, it is possible to use hub discs with various axial thicknesses. Fixing the hub disc 7 in the axial direction without play gives a clutch disc that is resistant to unbalance during operation.

FIG. 5 is a variant of FIG. 4, in which the friction device between the cover plate 10 and the outer spline 13 of the hub 3 is realized by a simple wave spring 25, whereby the friction device 21 is It is realized with a few individual parts, including the bearing wheel 16 of the lining support 9. The friction device 20 above it in the radial direction here consists of a spring 23, a pressure wheel 27 and a friction wheel 26 mounted on the hub disk 7. In this case, the nose end of the pressurizing wheel 27 that is bent in the axial direction engages in the opening of the cover plate 10 in the circumferential direction without play, so that the pressurizing wheel 27 has torsional rigidity, but in the axial direction. The cover plate 10 is slidably disposed so as to face the cover plate 10. Thus, the friction device 20 is particularly reliable in operation and has a long life. Regarding the unbalance sensitivity, the structure of FIG.
It can be evaluated in the same manner as the structure of.

The variant clutch disc shown in FIG. 6 is clearly different from that of FIGS. In this case, the hub 5 is made of a plastic material and the use of bearing wheels can be dispensed with. For this purpose, at least the lining support 9, and possibly also the cover plate 10, are provided in the radially inner region with extensions 32 or 33 pointing axially away from the spline region 13 of the hub. The part is fitted in the guide diameter part 15 of the hub 5. These extensions 32, 33 extend substantially according to the axial length of the hub 5. In this way, the hub 5 is secured in radial direction by its extensions 32, 33 in such a way that the plastic material can be radially raised by the torque transmission through the inner splines 6. At the same time, the parts 9, 10 made of sheet metal, with their extensions 32, 33, are a sliding-friendly material pair for hubs made of plastic. The other members are basically known. The hub 5 is provided with an axial stop 34 in the spline area, which stop has a larger diameter than the outer spline 13. A hub disk 7 is fixed to this axial stop in the direction of the lining support 9. In the other direction, a wave spring 25 is provided between the cover plate 10 and the hub 5.
Are arranged and the wave spring is used to generate a frictional force. The outer diameter of the corrugated spring is the outer spline 13
Overhangs from the outer diameter of to form another axial stop for the hub disk 7. The axial play provided in the hub disc 7 allows the clutch disc to be manufactured in a modular manner. Depending on the purpose of use and the load of the clutch disc, the same hub 5 can form hub discs 7 of various thicknesses.

In the structure of FIGS. 1 and 6, it is of course possible to eliminate the axial play of the hub disk by means of springs acting in the axial direction. As a result, the axial arrangement of the hub disk with respect to the hub is fixed. The force of this spring is
It is possible to carry out less than the force provided for the friction device 19 or 22. The effectiveness of the friction device is not impaired by this.

The coincident inner contour / outer contour can also be another geometric shape, for example a polygon.

[0029]

The clutch disc of the present invention comprises a split hub disc that engages the outer spline of the hub torsionally rigidly through the inner spline in the circumferential direction without play, with a plastic / metal friction pair or at the guide diameter of the hub. In combination with guiding at least one component, namely the lining support or the cover plate, via a sliding pair, on the one hand, the hub and the hub disc are manufactured separately, a particularly advantageous manufacture for each member It is possible to single out the law,
On the other hand, the members, which are rotatable relative to one another, are arranged to be guided in a precise arrangement relative to one another, at least on one side of the hub. Therefore, the clutch disk according to the present invention has an effect of being inexpensively and functionally manufactured.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an upper half of a clutch disc.

FIG. 2 is a part of a vertical sectional view of a modified embodiment.

FIG. 3 is a part of a vertical sectional view of another modified embodiment.

FIG. 4 is a part of a longitudinal sectional view with two friction wheels provided one above the other.

FIG. 5 is a part of a vertical sectional view of another modified embodiment.

FIG. 6 is a portion of a longitudinal cross-section of an embodiment having a plastic hub.

[Explanation of symbols]

 1 Clutch Disc 2 Rotational Axis 3 Hub 4 Hub 5 Hub 6 Inner Spline 7 Hub Disc 8 Hub Disc 9 Lining Support 10 Cover Plate 11 Friction Lining 12 Spring 13 Outer Spline 14 Inner Spline 15 Guide Diameter 16 Bearing Wheel 17 Flange 18 Bearing Body 19 Friction device 20 Friction device 21 Friction device 22 Friction device 23 Spring 24 Spring 25 Spring 26 Friction ring 27 Pressure ring 28 Friction ring 29 Friction ring 30 Tongue 31 Tongue 32 Extension 33 Extension 34 34 Axial stop

Front page continuation (72) Inventor Reinhard Feldhaoz Germany Ebenhaozen, Waldstraße 10 (72) Inventor Harald Jeppe German Schweinfurt, Schwanbergstraße 20

Claims (21)

[Claims] 1. A clutch disc for a friction clutch, the hub having an inner spline for fitting to a transmission input shaft that limits a rotation axis with torsional rigidity, and a hub disk configured with the hub and torsional rigidity. A thin plate component arranged on both sides of the hub disc in the form of a lining carrier disc and a cover plate which are torsionally rigidly connected to one another and are kept spaced apart, and a friction lining arranged on the lining support radially outwardly, Including a window provided on the one hand on the lining support and the cover plate and on the other hand on the hub disc for receiving a spring allowing relative rotation between the friction lining and the hub when subjected to torque A) The hub discs (7, 8) contact the hubs (3-5) through the inner contour, in particular through the inner splines (14), in torsional rigidity and without play in the circumferential direction. Intermeshing with the outer contour, in particular with the outer spline (13); b) at least one component, ie a lining support
(9) or the cover plate (10) is guided to the guide diameter portion (15) of the hub (3 to 5) via a friction pair or a sliding pair such as plastic / metal. To do
Clutch disc. 2. Splines (13, 14) are provided in the radial area between the radially inner areas of the windows for the springs (12) of the hub disks (7, 8) and the hubs (3-5). The clutch disc according to claim 1, wherein: 3. A bearing wheel (16), preferably made of plastic, is fitted into the lining support (9) and / or the cover plate (10), which bearing wheel is preferably made of metal. Clutch disc according to claim 2, characterized in that it is fitted in the guide diameter portion (15) of the (3, 4). 4. A bearing (18) in which a bearing wheel (16) is fitted concentrically with a hole in a lining support (9) and / or a cover plate (10), and a lining support which projects radially outward. Clutch disc according to claim 3, characterized in that it has a substantially L-shaped cross section with a flange (17) which abuts the inner surface of the cover plate (10). 5. Clutch disc according to claim 4, characterized in that the splines (13, 14) are provided between the inner and outer diameters of the bearing (18) and the flange (17). . 6. A friction device (19-21) having axially effective springs (23-25) is arranged on the side of the splines (13, 14) opposite the bearing wheels (16). The clutch disc according to claim 5, wherein: 7. Clutch disc according to claim 6, characterized in that the friction device (19) comprises a friction wheel (26) which radially covers the splines (13, 14). 8. The width or material thickness of the hub and the hub disc are adjusted to each other at least in the range of the splines (13, 14), preferably the width of the hub disc (7) is small and the bearing wheels (16) in the axial direction. ) And the friction device (19) between the hub disc (7)
A clutch disc according to claim 6 or 7, characterized in that a clearance is provided for the clutch disc. 9. The friction device (20) is arranged such that it is effective radially outside the splines (13, 14) of the hub (3) with respect to the hub disc (7). The clutch disc according to claim 6. 10. The friction device (20) comprises at least a friction wheel (28) in contact with the hub disk (7), the friction wheel (28) and the inner wall of the lining support (9) or the cover plate (10). Clutch disc according to claim 9, characterized in that it comprises a spring (24) in between. 11. Another friction wheel (29) is arranged between the outer spline and the spring (24) of the friction device (20, 21) in the region of the outer spline (13) of the hub (3). 11. The clutch disc according to claim 10, wherein 12. The hub (5) is made of plastic and the lining support (9) and / or the cover plate (10) are
Guide diameter (15) of the hub (5) with a substantially cylindrical extension (32, 33) facing away from the splines (13, 14)
The clutch disc according to claim 2, wherein the clutch disc is fitted into the clutch disc. 13. The cylindrical extension (32, 33) is characterized in that it has an axial length starting from the outer spline (13) which corresponds substantially to the axial length of the hub (5). , Claim 12
The clutch disc described in. 14. The outer spline (13) of the hub (5) extends over only part of the axial length of the hub, the remainder acting as an axial stop (34) for the hub disc (7),
A friction device (22) having an axially effective spring (25) is arranged on the side opposite to the rest of 3),
The clutch disc according to claim 13. 15. A spring (25) or a friction wheel arranged between the spring (25) and the outer spline (13) comprises an outer spline (1).
Overhang radially from 3), where hub disc (7)
15. The clutch disc according to claim 14, wherein the axial fixation of the clutch disc is ensured. 16. The width of the hub disc (7) is adjusted according to the axial length of the outer spline (13) of the hub (5) so that the hub disc (7) has an axial play. 16. The clutch disc according to claim 15, characterized in that: 17. Clutch disc according to claim 11, characterized in that both friction wheels (28, 29) are biased by separate springs. 18. A common spring (24) is provided, which spring is a cover plate (10) or a lining support (9).
12. A clutch disc according to claim 11, characterized in that it is supported in one range and acts on the friction wheels (28, 29) respectively with different spring tongues (30, 31). 19. The outer spline (13) of the hub (4) extends only over a portion of the axial length of the hub, the balance acting as an axial stop (34) for the hub disc (7).
A clutch disc according to claim 6 or 7, characterized in that a friction device (19) is arranged on the side opposite to the rest of the (13). 20. Clutch disc according to claim 19, characterized in that the hub disc (8) is embodied wider than the axial length of the outer splines (13) of the hub (4). 21. The friction device (19) comprises a pressure wheel (27) which is mounted on the friction wheel (26) on the side of the friction wheel opposite the hub disc (8). Between the pressure wheel (27) and the lining support (9) or cover plate (10).
21. Clutch disc according to claim 20, characterized in that 3) is arranged.